Fonterra also owns the Melbourne-based Perfect Italiano brand, Australia's Western Star butter brand and the flavoured milk drink, CalciYum.
"The discontinuation of much of Mainland at Coles is in no way a reflection of our commitment to Mainland, Australia or the dairy sector," an Australian-based Fonterra spokeswoman told BusinessDesk. "We continue to be in active discussions with Coles around the future of the brand and its role within the category."
"The full Mainland range is available nationally at all Woolworths stores, Woolworths online and the independent supermarkets including IGA, Ritchies, Foodland and Foodworks," she said.
The world's biggest dairy exporter has sold Mainland products across the Tasman for 55 years. It has manufacturing sites across NSW, Victoria and Tasmania, collecting over 1.4 billion litres of milk from around 1,500 dairy farmers and employs over 2,000 people.
Feedback on the Coles website suggests Australian customers sympathise with the sentiment, but not the decision.
An indicative comment, from a customer named Valerie, said: "I prefer buying local produce where possible, but Mainland is a superior product. We've always shopped at Coles in the past but will now have to go to Woolies to get a decent cheese."